CN114654696A - Temperature control mechanism for processing large polyethylene heat-preservation outer protection bent pipe - Google Patents
Temperature control mechanism for processing large polyethylene heat-preservation outer protection bent pipe Download PDFInfo
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- CN114654696A CN114654696A CN202210381684.9A CN202210381684A CN114654696A CN 114654696 A CN114654696 A CN 114654696A CN 202210381684 A CN202210381684 A CN 202210381684A CN 114654696 A CN114654696 A CN 114654696A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/255—Flow control means, e.g. valves
- B29C48/2556—Flow control means, e.g. valves provided in or in the proximity of dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/87—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A temperature control mechanism for processing a large polyethylene heat-preservation outer protection bent pipe relates to a temperature control mechanism for processing a bent pipe, wherein the inner end of a sleeve (6) is fixedly connected with the large end of a conical outer sheath (5), and the small end of the conical outer sheath is provided with a connecting flange (3); the inner end of a core mold cylinder (20) is connected with the inner end of a sleeve in a multi-point manner, an extrusion groove (69) is formed between the outer edge of the core mold cylinder and the inner wall of the sleeve at an interval, the large end of a core mold conical flow distributing body (4) is fixedly connected with the inner end of the core mold cylinder, a swinging discharge adjusting ring plate (17) for controlling the discharge amount of one side of the extrusion groove to be more than that of the other side is arranged on one side of the inner wall of the sleeve close to the outer end, and a semicircular temperature control water jacket (22) is arranged on one side of the outer wall of the middle part of the sleeve; according to the invention, the swingable discharging adjusting ring plate is arranged at the outer end of the sleeve, the control handle enables the top column to push against the discharging adjusting ring plate to obtain the increase of the discharging on one side of the extrusion groove, and the semicircular temperature control water jacket is used for increasing the temperature control on one side of the extrusion groove.
Description
Technical Field
The invention relates to a temperature control mechanism for a polyethylene heat-preservation outer protection bent pipe, in particular to a temperature control mechanism for processing a large polyethylene heat-preservation outer protection bent pipe.
Background
In large-capacity heat insulation pipelines such as petroleum, chemical engineering, spaceflight, hot springs, military affairs, central heating, central air conditioning, municipal administration and the like, the main pipeline used is a prefabricated directly-buried heat insulation pipe, the structure of the prefabricated directly-buried heat insulation pipe is that rigid polyurethane foam is filled between a polyethylene heat insulation outer pipe and an inner steel pipe, the prefabricated directly-buried heat insulation pipe is more suitable for conveying various liquid media with the temperature range of-50 ℃ to 150 ℃, the prefabricated directly-buried heat insulation pipe is directly buried underground during construction, and a large amount of energy can be saved by utilizing the excellent corrosion resistance and the heat insulation performance of the prefabricated directly-buried heat insulation pipe during long-term operation, the construction is simpler and more convenient, and the diameter of the pipeline is usually more than sixty centimeters in order to increase the conveying capacity; the manufacturing process of the straight prefabricated direct-buried heat-insulation pipe is mature, the manufacturing process of the part with the bent pipe is very complicated, a plurality of polyethylene plates are cut into a plurality of rhombuses by adopting a butt joint method, and then the bent pipe is obtained by adopting the butt joint method, so that the cracking or local bulge phenomenon is easy to occur when hard polyurethane foam is filled in the later period and is not standard; in order to meet market demands, the unit begins to research and develop a manufacturing method of a prefabricated direct-buried heat-insulation bent pipe, the whole machine of an extruder is transformed, then a matched track, a semicircular bracket and a positioning box are arranged, the whole prefabricated direct-buried heat-insulation bent pipe can be well processed, but in actual operation, the use impression is influenced by the wrinkle phenomenon of an outer bend, one side wall of one side wall is thinner, the unit begins further research and development work, and the temperature control mechanism which is basically consistent in wall thickness and can reduce or stop wrinkles is provided.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a temperature control mechanism for processing a large polyethylene heat-preservation outer protection bent pipe.
The technical scheme for realizing the invention is as follows:
a temperature control mechanism for processing a large polyethylene heat-preservation outer protection bent pipe is characterized in that the inner end of a sleeve is fixedly connected with the large end of a conical outer sheath, and the small end of the conical outer sheath is provided with a connecting flange; the inner of a core mold cylinder and the inner of a sleeve are connected in a multi-point mode, an extrusion groove is formed in the interval between the outer edge of the core mold cylinder and the inner wall of the sleeve, the large end of a conical flow dividing body of a core mold is fixedly connected with the inner end of the core mold cylinder, a swinging discharge adjusting ring plate which controls the discharge amount of one side of the extrusion groove to be more than that of the other side is arranged on one side, close to the inner wall of the outer end, of the sleeve, a semicircular temperature control water jacket is arranged on one side of the outer wall of the middle of the sleeve, and flowing cooling water in the semicircular temperature control water jacket obtains the temperature control of the extrusion groove when the extrusion groove is widened on one side.
The temperature control mechanism for processing the large polyethylene heat-preservation outer protection bent pipe is characterized in that a reducing insertion ring is arranged at the inner end of a sleeve, a ring sleeve is arranged at the end face, close to the outer edge, of the large end of a conical outer sheath, the insertion ring of the sleeve is inserted into the ring sleeve of the conical outer sheath, four recessed faces which are arranged at intervals are arranged on the annular reducing wall on the inner face of the sleeve insertion ring, four equidistant convex blocks are arranged at intervals on the outer edge, close to the inner end, of a core mould cylinder, the four convex blocks are respectively inserted into the recessed faces of the sleeve insertion ring, one of the four convex blocks is provided with a hole through which an air pipe passes, screw holes are respectively formed in the other three outer end faces of the four convex blocks, and three screws are respectively connected with the three screw holes after passing through holes of the sleeve and the hole of the conical outer sheath ring sleeve; the air pipe is connected with a through hole of one of the four convex blocks, a pipe through hole of the inserting ring and a ring sleeve hole in a penetrating manner.
The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe is characterized in that a sealing plate sleeve is arranged on the end face of the outer end of the core die cylinder, the sealing plate is arranged in the sealing plate sleeve, and the air outlet end of the air pipe is fixed in the middle of the sealing plate.
The temperature control mechanism for processing the large polyethylene heat-preservation outer protection bent pipe is characterized in that an expanded adjusting ring sleeve plate is arranged at the position, close to the outer end, of a sleeve, a connecting ring is arranged at the outer edge of the inner end face of a cooling water jacket arranged on the sleeve, the connecting ring of the cooling water jacket is inserted into the inner face of the adjusting ring sleeve plate of the sleeve, and a plurality of screws penetrate through unthreaded holes of the connecting ring and then are connected with screw holes of the adjusting ring sleeve plate; a placing space of a discharging adjusting ring plate is formed between the inner end surface of the cooling water jacket and the outer end surface of the sleeve, a space is reserved between the outer edge of the discharging adjusting ring plate and the inner surface of the adjusting ring sleeve plate, two rows of blind holes are arranged on the outer edge surface of the discharging adjusting ring plate at intervals, the inner ends of a plurality of springs matched with the blind holes are positioned in the blind holes, and the outer ends of the springs are propped against the inner surface of the adjusting ring sleeve plate; a convex column is arranged on one side of the outer edge surface of the connecting ring, the telescopic rod penetrates through a through hole in the middle of the convex column, a convex ring is arranged on the convex column outside the through hole, two ends of the top spring are respectively propped against the convex ring and the inner surface of the cover, and the thread in the cover cylinder is connected with the external thread of the convex column; the inner end of the telescopic rod is inserted into a circular blind hole at one side of the discharging adjusting ring plate, and the telescopic rod prevents the discharging adjusting ring plate from being staggered; the other side of the outer edge surface of the connecting ring is provided with a through hole, a screw hole is arranged on the other side of the sleeve, the screw rod is connected in the screw hole, a top column arranged at the inner end of the screw rod props against a blind top hole on the other side of the discharging adjusting ring plate, the top column is controlled by a control handle at the outer end of the screw rod to enable the discharging adjusting ring plate to swing towards one side, and a synchronous telescopic rod presses a top spring to contract; and the screw is linked with the water inlet control of the semicircular temperature control water jacket.
The temperature control mechanism for processing the large polyethylene heat-preservation outer-protection bent pipe is characterized in that a connector is arranged at the outer end of a screw, a connecting rod is arranged at the outer end of the connector, and a control handle is arranged at the outer end of the connecting rod; the screw rod between connector and go-between wears the other end articulated connection of middle and upper clamp and lower clamp in the connector that last clamp and lower clamp are close to one end respectively, goes up the outer end of clamp and lower clamp and connects two rubber columns respectively, is equipped with the power connecting wire connecting contact of control by temperature change electric ball valve on the inner terminal surface of two rubber columns respectively, and the cover has reset spring on two rubber columns, reset spring's both ends are pushed up respectively on the middle part opposite face of last clamp and lower clamp.
The temperature control mechanism for processing the large polyethylene heat-preservation outer protection bent pipe is characterized in that a cover ring is arranged at the outer edge of the cooling water jacket, and the cover ring and the cooling water jacket are integrally formed through welding.
The temperature control mechanism for processing the large polyethylene heat-preservation outer protection bent pipe is characterized in that a reducing limiting ring is arranged on the end face of the outer end of the discharging adjusting ring plate, and the outer edge face of the limiting ring is in clearance fit with the inner wall of the cooling water jacket.
The temperature control mechanism during large-scale polyethylene heat preservation outer protection return bend adds man-hour, semicircle temperature control water jacket sets up and is pressing close to adjustable ring sleeve board department, is equipped with inlet tube connecting hole and drain pipe connecting hole respectively in the upper portion and the lower part of semicircle temperature control water jacket, is equipped with the electronic ball valve of control by temperature change on the inlet tube connecting hole, the switch of the electronic ball valve of control by temperature change passes through power connecting wire and is connected with the control mechanism who controls extrusion slot discharge capacity, opens the electronic ball valve of control by control mechanism control ejection of compact regulation ring board in the wobbling.
The temperature control mechanism for processing the large polyethylene heat-preservation outer-protection bent pipe is characterized in that a plurality of connecting plates A are arranged at the front end of the upper part of the sleeve; the upper part of the big end of the conical outer sheath is provided with a plurality of connecting plates B.
The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe is characterized in that a lantern ring is arranged on the outer side of the inner end face of the core mould cylinder, an inserting ring is arranged at the large end of the core mould conical flow dividing body, and the inserting ring of the core mould conical flow dividing body is inserted into the lantern ring of the core mould cylinder and connected through a plurality of screws.
Through the disclosure, the beneficial effects of the invention are as follows:
aiming at the problem that the wall thickness of an inner bend is too large and the wall thickness of an outer bend is too small when a large polyethylene heat-preservation outer protection bent pipe is processed, the temperature control mechanism is characterized in that a movable discharging adjusting ring plate is arranged at the discharging port of an extrusion groove by changing the discharging size of the extrusion groove, a control handle is utilized to enable a top post to push against the discharging adjusting ring plate to move so as to adjust the discharging amount, and in order to ensure the stability of the discharging adjusting ring plate, a telescopic rod is arranged on one side of the discharging adjusting ring plate so as to enable the discharging adjusting ring plate to move within a limited range; in order to solve the resetting problem of the discharging adjusting ring plate, a plurality of springs are arranged around the discharging adjusting ring plate, and the discharging adjusting ring plate is ensured to be in a specified position by the springs when the jacking columns do not exert force so as to ensure that the wall thickness of straight pipes at two ends of an extruded bent pipe is consistent; because the bent pipe on the side with enlarged discharging after the movement of the discharging adjusting ring plate is easy to have bent pipe wrinkles caused by higher temperature, the temperature control device is provided with a semicircular temperature control water jacket for controlling the temperature on the side with enlarged discharging, the discharging adjusting ring plate is regulated and controlled by a screw rod, and simultaneously, an upper clamp and a lower clamp sleeved on the screw rod control the temperature control electric ball valve to be opened when the distance between the connector and the connecting ring is changed, so that the synchronous temperature control during the bent pipe processing is further obtained; according to the invention, the swingable discharging adjusting ring plate is arranged at the outer end of the sleeve, the control handle enables the top column to push the discharging adjusting ring plate to obtain one side of the extruding groove for discharging increase, the semicircular temperature control water jacket increases one side of the extruding groove for discharging temperature control, and the problem of wrinkling of the polyethylene heat-insulating outer protecting bent pipe is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of the cooling jacket according to the present invention;
FIG. 3 is a schematic view of the telescopic rod structure of the present invention;
FIG. 4 is a schematic perspective view of the discharge adjustment ring plate of the present invention;
FIG. 5 is a schematic perspective view of the sleeve of the present invention;
FIG. 6 is a view from the direction A of FIG. 5;
FIG. 7 is a perspective view of the closure panel of the present invention;
FIG. 8 is a perspective view of the tapered outer sheath of the present invention;
FIG. 9 is a view from direction B of FIG. 8;
FIG. 10 is a schematic view of the screw configuration of the present invention;
FIG. 11 is a perspective view of the clip body of the present invention;
FIG. 12 is a schematic view of the construction of the rubber column of the present invention;
fig. 13 is a schematic perspective view of a core cylinder according to the present invention;
fig. 14 is a schematic perspective view of a tapered split flow body of a core mold according to the present invention;
FIG. 15 is a schematic view of the installation position of the present invention on a pipe bending apparatus;
FIG. 16 is a view in the direction C of FIG. 15;
in the figure: 1. a power connection line; 2. a temperature controlled electric ball valve; 3. a connecting flange; 4. a core mold conical shunt body; 5. a tapered outer sheath; 6. a sleeve; 7. a connector; 8. a connecting rod; 9. a rubber column; 10. a return spring; 11. a cooling water jacket; 12. an upper clamp body; 13. a screw; 14. a spring; 15. a top pillar; 16. a cover ring; 17. a discharge adjusting ring plate; 18. an air tube; 19. a sealing plate; 20. a core mold cylinder; 21. a telescopic rod; 22. a semicircular temperature control water jacket; 23. a raised ring; 24. a spring is supported; 25. a cover; 26. a raised post; 27. perforating; 28. a light hole; 29. a connecting ring; 30. a thread; 31. blind holes; 32. a circular hole; 33. a limiting ring; 34. a blind top hole; 35. perforating the pipe; 36. adjusting a ring bushing plate; 37. a recessed surface; 38. a plug-in ring; 39. a through hole; 40. a water inlet pipe connecting hole; 41. a drain pipe connecting hole; 42. a connecting plate A; 43. sleeving a ring; 44. a connecting plate B; 45. a connecting port; 46. a lower clamp body; 47. an annular groove; 48. a convex block; 49. connecting sheets; 50. a sealing plate sleeve; 51. a collar; 52. a screw hole; 53. a plug-in ring; 54. a spray cooling pipe; 55. a hopper; 56. a wheel; 57. a control system; 58. a cold water pipe; 59. a power source; 60. an upper box body; 61. feeding a material box; 62. a feed pipe; 63. a semicircular bracket; 64. a track; 65. a positioning box; 66. a clamping mechanism; 67. a hydraulic pump; 68. a hydraulic pump control mechanism; 69. an extrusion groove; 70. a control handle; 71. a door-shaped frame.
Detailed Description
The present invention will be further illustrated with reference to the following examples; the following examples are not intended to limit the present invention, and are only used as a support for the implementation of the present invention, and any equivalent structure replacement within the technical framework of the present invention is included in the protection scope of the present invention;
with reference to the temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe shown in fig. 1-14, the front end of the upper part of the sleeve 6 is provided with a plurality of connecting plates a42 connected with the upper frame body of the door-shaped frame, the inner end of the sleeve 6 is fixedly connected with the large end of the tapered outer sheath 5, the upper part of the large end of the tapered outer sheath 5 is provided with a plurality of connecting plates B44 connected with the upper frame body of the door-shaped frame, and the small end of the tapered outer sheath 5 is provided with a connecting flange 3; the inner end of the core mold cylinder 20 is connected with the inner end of the sleeve 6 in multiple points, the extrusion groove 69 is formed at the interval between the outer edge of the core mold cylinder 20 and the inner wall of the sleeve 6, the lantern ring 51 is arranged on the outer side of the end face of the inner end of the core mold cylinder 20, the insertion ring 53 of the core mold taper flow divider 4 is inserted into the lantern ring 51 of the core mold cylinder 20 and connected by multiple screws, the swing discharge adjusting ring plate 17 which controls the discharge amount on one side of the extrusion groove 69 to be more than that on the other side is arranged on one side of the inner wall of the outer end of the sleeve 6, the semicircular temperature control water jacket 22 is arranged on one side of the outer wall of the middle part of the sleeve 6, and the temperature control of the extrusion groove 69 is obtained when the flowing cooling water in the semicircular temperature control water jacket 22 is widened on one side of the extrusion groove 69.
With reference to fig. 1, 5 or 8, a reducing insertion ring 38 is disposed at the inner end of the sleeve 6, a ring sleeve 43 is disposed at the end surface of the large end of the tapered outer sheath 5 near the outer edge, the insertion ring 38 of the sleeve 6 is inserted into the ring sleeve 43 of the tapered outer sheath 5, four recessed surfaces 37 are disposed at intervals on the annular reducing wall at the inner surface of the insertion ring 38 of the sleeve 6, four equally spaced protruding blocks 48 are disposed at intervals on the outer edge of the core cylinder 20 near the inner end, the four protruding blocks 48 are respectively inserted into the recessed surfaces 37 of the insertion ring 38 of the sleeve 6, one of the four protruding blocks 48 is provided with a hole through which the air pipe 18 passes, the other three outer end surfaces of the four protruding blocks 48 are respectively provided with screw holes 52, and three screws are respectively connected to the three screw holes 52 after passing through the through holes 39 of the sleeve 6 and the ring sleeve 43 of the tapered outer sheath 5; the air pipe 18 is connected with a through hole of one of the four convex blocks 48, a pipe through hole 35 of the plug-in ring 38 and a ring sleeve 43 in a penetrating way; the end face of the outer end of the core mold cylinder 20 is provided with a sealing plate sleeve 50, a plurality of surrounding connecting sheets 49 are arranged at the core mold cylinder 20 close to the sealing plate sleeve 50, the sealing plate 19 is fixed on the connecting sheets 49 by screws, so that the sealing plate 19 is fixed in the sealing plate sleeve 50, and the air outlet end of the air pipe 18 is fixed in the middle of the sealing plate 19.
With reference to fig. 1, 2, 3, 4 or 5, an expanded adjusting ring sleeve plate 36 is arranged at the outer end of the sleeve 6 close to the outer end, a connecting ring 29 is arranged at the outer edge of the inner end surface of a cooling water jacket 11 arranged on the sleeve 6, a cover ring 16 is arranged at the outer edge of the cooling water jacket 11, the cover ring 16 is integrated with the cooling water jacket 11 by welding, the connecting ring 29 of the cooling water jacket 11 is inserted into the inner surface of the adjusting ring sleeve plate 36 of the sleeve 6, and a plurality of screws penetrate through the unthreaded holes 28 of the connecting ring 29 and then are connected with the threaded holes of the adjusting ring sleeve plate 36; a placing space of the discharging adjusting ring plate 17 is formed between the inner end surface of the cooling water jacket 11 and the outer end surface of the sleeve 6, a space is reserved between the outer edge of the discharging adjusting ring plate 17 and the inner surface of the adjusting ring plate 36, a reducing limiting ring 33 is arranged on the outer end surface of the discharging adjusting ring plate 17, the outer edge surface of the limiting ring 33 is in clearance fit with the inner wall of the cooling water jacket 11, two rows of blind holes 31 are arranged on the outer edge surface of the discharging adjusting ring plate 17 at intervals, the inner ends of a plurality of springs 14 matched with the blind holes 31 in number are positioned in the blind holes 31, and the outer ends of the springs 14 are propped against the inner surface of the adjusting ring plate 36; a raised column 26 is arranged on one side of the outer edge surface of the connecting ring 29, the telescopic rod 21 is inserted into a through hole 27 in the middle of the raised column 26, a raised ring 23 is arranged on the raised column 26 outside the through hole 27, two ends of a top spring 24 are respectively propped against the raised ring 23 and the inner surface of the cover 25, and a thread 30 in the cylinder of the cover 25 is connected with an external thread of the raised column 26; the inner end of the telescopic rod 21 is inserted into the round blind hole 32 at one side of the discharging adjusting ring plate 17, and the telescopic rod 21 prevents the discharging adjusting ring plate 17 from being dislocated; the other side of the outer edge surface of the connecting ring 29 is provided with a through hole, a screw hole is arranged on the other side of the sleeve 6, the screw rod 13 is connected in the screw hole, a top column 15 arranged at the inner end of the screw rod 13 is propped in a blind top hole 34 on the other side of the discharging adjusting ring plate 17, the control handle 70 at the outer end of the screw rod 13 controls the top column 15 to enable the discharging adjusting ring plate 17 to swing towards one side, and the synchronous telescopic rod 21 presses the top spring 24 to contract; semicircle temperature control water jacket 22 sets up and is being close to adjustable ring cover board 36 department, is equipped with inlet tube connecting hole 40 and drain pipe connecting hole 41 respectively in semicircle temperature control water jacket 22's upper portion and lower part, is equipped with control by temperature change electric ball valve 2 on the inlet tube connecting hole 40, control by temperature change electric ball valve 2's switch passes through power connecting wire 1 and is connected with the control mechanism of control extrusion tank 69 discharge capacity, opens control by temperature change electric ball valve 2 in the wobbling by control mechanism control ejection of compact regulation ring board 17, screw 13 linkage semicircle temperature control water jacket 22's the control of intaking.
With reference to fig. 1, 10, 11 or 12, a connector 7 is arranged at the outer end of the screw 13, a connecting rod 8 is arranged at the outer end of the connector 7, and a control handle 70 is arranged at the outer end of the connecting rod 8; the screw 13 between the connector 7 and the connecting ring 29 respectively penetrates through the connecting ports 45 at one ends of the upper clamp 12 and the lower clamp 46, the other ends of the upper clamp 12 and the lower clamp 46 are hinged, the middle parts of the upper clamp 12 and the lower clamp 46 are respectively connected with the outer ends of the two rubber columns 9, which are close to the outer ends, are respectively provided with an annular groove 47, the annular groove 47 is used for connecting holes with the diameter matching the diameter of the annular groove 47 at the mounting part of the upper clamp 12 and the lower clamp 46, the inner end faces of the two rubber columns 9 are respectively provided with a power supply connecting wire 1 connecting contact of the temperature control electric ball valve 2, the two rubber columns 9 are sleeved with a return spring 10, and the two ends of the return spring 10 respectively prop against the opposite surfaces at the middle parts of the upper clamp 12 and the lower clamp 46.
The temperature control mechanism for processing the large polyethylene heat-preservation outer protection bent pipe is implemented by reforming a discharge part of a polyethylene extruder sold in the market according to the attached drawings 1 to 14, synchronously switching on a power supply 59 for a temperature control electric ball valve 2, then reforming an original water channel, enabling a cold water pipe 58 to enter a semicircular temperature control water jacket 22 through the temperature control electric ball valve 2, and switching on a drain pipe connecting hole 41; then, the whole machine part is set into a door-shaped structure and provided with wheels 56, corresponding tracks 64, semicircular brackets 63 and positioning boxes 65 are modified, a polyethylene extruder is fixed by using a frame body in an upper box body 60, and an original control system 57 is arranged on one side of the upper box body 60 or a fan and a water supply system in the upper box body 60; the rails 64 are made of i-steel, one ends of the two rails 64 are provided with stop blocks, the semicircular bracket 63 is made of steel materials meeting the strength and fixedly connected with the two rails 64, and the whole machine, the rails 64, the semicircular bracket 63 and the positioning box 65 are applied in another application, so that the application is not described in detail.
When in use, with reference to fig. 1 to 16, a polyethylene extruder is pushed to a position close to a positioning box 65 at one end of two rails 64, a material in a hopper 55 at the upper part of a box 60 of the polyethylene extruder is conveyed into a hot melting pipeline by a material suction pipe of the polyethylene extruder after a control system 57 is started, the material is driven by a power part of the hot melting pipeline to reach a hot melting cavity for hot melting treatment, the material enters a material channel wrapped by a water cooling device after being melted, the water cooling device of the control system 57 cools the melted material to a required temperature, the material enters a position between a core mold conical flow distribution body 4 and a conical outer sheath 5 of the extruder, then reaches an extrusion groove 69 between a sleeve 6 and a core mold cylinder 20, and then is slowly extruded through a position between a discharge adjusting ring plate 17 and the core mold cylinder 20, when a polyethylene heat-preserving outer protective elbow pipe outside the extrusion groove 69 of the extruder comes out for more than thirty centimeters, opening a switch of a hydraulic pump control mechanism 68, controlling a clamping mechanism 66 to clamp the pipe end by a hydraulic pump 67 in a positioning box 65, simultaneously starting wheels 56 at two sides of the lower part of a door-shaped frame 71 of an upper box body 60 to move towards the other end of a rail 64 along the rail 64, when the pipe end of the polyethylene heat-preservation outer bend pipe reaches a certain length, starting a fan of a control system 57 to enable wind power to be transmitted into the polyethylene heat-preservation outer bend pipe through a wind pipe 18, then discharging the wind through a wind outlet arranged in the clamping mechanism 66, enabling the polyethylene heat-preservation outer bend pipe to form a wind drum expansion by strong wind transmitted by the wind pipe 18 so as to enable the polyethylene heat-preservation outer bend pipe to keep the shape unchanged in the cooling process, simultaneously cooling the extruded polyethylene heat-preservation outer bend pipe by a cooling water jacket 11, enabling an extruder to be in a continuous discharging state at the moment, enabling the wheels 56 at the lower part of the synchronous door-shaped frame 71 to move towards the other end of the rail 64 above the rail 64 according to the discharging state, at the moment, the spraying cooling pipe 54 on the upper box body 61 is opened to enable cold water to accelerate cooling of the outer part of the polyethylene heat-preservation outer protection bent pipe; when the polyethylene heat-preservation outer-protection bent pipe is pulled out for a certain length, the polyethylene heat-preservation outer-protection bent pipe between the clamping mechanism 66 and the extruder falls into a semicircular recess of the semicircular bracket 63 under the action of self weight, the feeding box 61 continuously feeds materials to the hopper 55 through the feeding pipe 62 in the process, when the extruder reaches a turning position of the track 64, the control handle 70 is started to enable the connecting rod 8 to control the screw 13 to rotate, the top column 15 presses the other side of the discharging adjusting ring plate 17, the telescopic rod 21 arranged at one side of the discharging adjusting ring plate 17 guides the materials to slowly move towards one side of the discharging adjusting ring plate 17, meanwhile, the upper clamp 12 between the connecting head 7 and the connecting ring 29 and one end of the lower clamp 46 are close to each other, the power connecting line 1 on the upper clamp 12 is in contact connection with the power connecting line 1 on the lower clamp 46, the power connecting line 1 of the temperature-control electric ball valve 2 is switched on, and the temperature-control electric ball valve 2 controls cold water to enter the semicircular temperature-control water jacket 22, the extruding groove 69 at the outer bent pipe bending part of the polyethylene heat-preservation outer protective bent pipe is cooled by conduction of the sleeve 6, after the pipe bending part is completed, the control handle 70 is started to enable the connecting rod 8 to control the screw 13 to rotate reversely, the top column 15 loses pressure on the other side of the discharging adjusting ring plate 17, the telescopic rod 21 arranged on one side of the discharging adjusting ring plate 17 moves back towards the discharging adjusting ring plate 17, at the moment, the springs 14 arranged around the discharging adjusting ring plate 17 respectively enable the discharging adjusting ring plate 17 to reset, under the condition that the pressure is lost, the upper clamp body 12 and the lower clamp body 46 are separated through the reset spring 10, meanwhile, the power connecting wire 1 on the upper clamp body 12 is separated from the power connecting wire 1 on the lower clamp body 46, the extruder enters the straight rail 64 at the other turning end of the rail 64 until the polyethylene heat-preservation outer protective bent pipe with the required length is completely completed and then is shut down, and finally, the other end of the polyethylene heat-preservation outer protective bent pipe is cut through the cutting tool to complete the polyethylene heat-preservation outer protective bent pipe And (5) processing.
The present invention is not described in detail in the prior art.
Claims (10)
1. A temperature control mechanism for processing a large polyethylene heat-preservation outer protection bent pipe is characterized in that the inner end of a sleeve (6) is fixedly connected with the large end of a conical outer sheath (5), and the small end of the conical outer sheath (5) is provided with a connecting flange (3); the inner of a core mould cylinder (20) and the inner of a sleeve (6) are connected in multiple points, an extrusion groove (69) is formed at the interval between the outer edge of the core mould cylinder (20) and the inner wall of the sleeve (6), and the large end of a core mould conical shunt body (4) is fixedly connected with the inner of the core mould cylinder (20), and the device is characterized in that: the swinging discharge adjusting ring plate (17) which controls the discharge amount on one side of the extrusion groove (69) to be more than the discharge amount on the other side is arranged on one side of the inner wall of the outer end, which is close to the outer end of the sleeve (6), a semicircular temperature control water jacket (22) is arranged on one side of the outer wall of the middle part of the sleeve (6), and the temperature control of the extrusion groove (69) is obtained when the flow cooling water in the semicircular temperature control water jacket (22) is widened on one side of the extrusion groove (69).
2. The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, which is characterized in that: the inner end of the sleeve (6) is provided with a reducing inserting ring (38), the large end of the conical outer sheath (5) is provided with a ring sleeve (43) close to the end surface of the outer edge, the inserting ring (38) of the sleeve (6) is inserted in the ring sleeve (43) of the conical outer sheath (5), four concave surfaces (37) arranged at intervals are arranged on the annular reducing wall on the inner surface of the inserting ring (38) of the sleeve (6), four convex blocks (48) with equal intervals are arranged at the outer edge of the core mould cylinder (20) close to the inner end at intervals, the four convex blocks (48) are respectively inserted into the concave surfaces (37) of the inserting ring (38) of the sleeve (6), one of the four convex blocks (48) is provided with a hole through which the air pipe (18) passes, the other three outer end surfaces of the four convex blocks (48) are respectively provided with a screw hole (52), and three screws respectively pass through the through hole (39) of the sleeve (6) and the hole of the ring sleeve (43) of the conical outer sheath (5) and then are connected with the three screw holes (52); the air pipe (18) is connected with a through hole of one of the four convex blocks (48), a pipe through hole (35) of the plug-in ring (38) and a ring sleeve (43) hole in a penetrating way.
3. The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe according to claim 2, which is characterized in that: the end face of the outer end of the core mold cylinder (20) is provided with a sealing plate sleeve (50), a sealing plate (19) is arranged in the sealing plate sleeve (50), and the air outlet end of the air pipe (18) is fixed in the middle of the sealing plate (19).
4. The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, which is characterized in that: an expanded adjusting ring sleeve plate (36) is arranged at the position, close to the outer end, of the sleeve (6), a connecting ring (29) is arranged at the outer edge of the inner end face of a cooling water jacket (11) arranged on the sleeve (6), the connecting ring (29) of the cooling water jacket (11) is inserted into the inner face of the adjusting ring sleeve plate (36) of the sleeve (6), and a plurality of screws penetrate through unthreaded holes (28) of the connecting ring (29) and then are connected with screw holes of the adjusting ring sleeve plate (36); a placing space of a discharging adjusting ring plate (17) is formed between the inner end surface of the cooling water jacket (11) and the outer end surface of the sleeve (6), a space is reserved between the outer edge of the discharging adjusting ring plate (17) and the inner surface of an adjusting ring sleeve plate (36), two rows of blind holes (31) are arranged on the outer edge surface of the discharging adjusting ring plate (17) at intervals, the inner ends of a plurality of springs (14) matched with the blind holes (31) in number are positioned in the blind holes (31), and the outer ends of the springs (14) are propped against the inner surface of the adjusting ring sleeve plate (36); a raised column (26) is arranged on one side of the outer edge surface of the connecting ring (29), the telescopic rod (21) penetrates through a through hole (27) in the middle of the raised column (26), a raised ring (23) is arranged on the raised column (26) outside the through hole (27), two ends of a top spring (24) respectively prop against the raised ring (23) and the inner surface of the cover (25), and a thread (30) in the cover (25) is connected with an external thread of the raised column (26); the inner end of the telescopic rod (21) is inserted into a round blind hole (32) at one side of the discharging adjusting ring plate (17), and the telescopic rod (21) prevents the discharging adjusting ring plate (17) from being misplaced; the other side of the outer edge surface of the connecting ring (29) is provided with a through hole, a screw hole is formed in the other side of the sleeve (6), the screw rod (13) is connected into the screw hole, a top column (15) arranged at the inner end of the screw rod (13) is propped against a blind top hole (34) in the other side of the discharging adjusting ring plate (17), the top column (15) is controlled by a control handle (70) at the outer end of the screw rod (13) to enable the discharging adjusting ring plate (17) to swing towards one side, and a synchronous telescopic rod (21) presses the top spring (24) to contract; and the screw (13) is linked with the water inlet control of the semicircular temperature control water jacket (22).
5. The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe according to claim 4, which is characterized in that: the outer end of the screw rod (13) is provided with a connector (7), the outer end of the connector (7) is provided with a connecting rod (8), and the control handle (70) is arranged at the outer end of the connecting rod (8); the screw rod (13) between connector (7) and go-between (29) is worn respectively and is connected in the other end of middle clamp (12) and lower clamp (46) in connector (45) that last clamp (12) and lower clamp (46) are close to one end is articulated, the outer end of two rubber columns (9) is connected respectively in the middle part of going up clamp (12) and lower clamp (46), be equipped with power connecting wire (1) connecting contact of control by temperature change electric ball valve (2) on the inner terminal surface of two rubber columns (9) respectively, the cover has reset spring (10) on two rubber columns (9), the both ends of reset spring (10) are pushed up respectively on the middle part opposite face of last clamp (12) and lower clamp (46).
6. The temperature control mechanism for processing the large polyethylene heat-preservation outer protection bent pipe according to claim 4, which is characterized in that: the outer edge of the cooling water jacket (11) is provided with a cover ring (16), and the cover ring (16) is integrated with the cooling water jacket (11) through welding.
7. The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe according to claim 4, which is characterized in that: the end face of the outer end of the discharging adjusting ring plate (17) is provided with a reducing limiting ring (33), and the outer edge face of the limiting ring (33) is in clearance fit with the inner wall of the cooling water jacket (11).
8. The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, which is characterized in that: semicircle temperature control water jacket (22) set up and are being close to adjustable ring sleeve board (36) department, are equipped with inlet tube connecting hole (40) and drain pipe connecting hole (41) respectively on the upper portion and the lower part of semicircle temperature control water jacket (22), are equipped with control by temperature change electric ball valve (2) on inlet tube connecting hole (40), the switch of control by temperature change electric ball valve (2) is passed through power connecting wire (1) and is extruded the control mechanism of groove (69) load with control and be connected, is opened control by temperature change electric ball valve (2) by control mechanism control ejection of compact regulation crown plate (17) in the wobbling.
9. The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, which is characterized in that: the front end of the upper part of the sleeve (6) is provided with a plurality of connecting plates A (42); the upper part of the large end of the conical outer sheath (5) is provided with a plurality of connecting plates B (44).
10. The temperature control mechanism for processing the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, which is characterized in that: the outer side of the end face of the inner end of the core mold cylinder (20) is provided with a lantern ring (51), the large end of the core mold conical shunt body (4) is provided with an inserting ring (53), and the inserting ring (53) of the core mold conical shunt body (4) is inserted into the lantern ring (51) of the core mold cylinder (20) and connected through a plurality of screws.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210381684.9A CN114654696B (en) | 2022-04-13 | 2022-04-13 | Temperature control mechanism for processing large-sized polyethylene heat-insulation outer protection bent pipe |
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|---|---|---|---|
| CN202210381684.9A CN114654696B (en) | 2022-04-13 | 2022-04-13 | Temperature control mechanism for processing large-sized polyethylene heat-insulation outer protection bent pipe |
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| CN114654696B CN114654696B (en) | 2023-08-29 |
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| CN114654696B (en) | 2023-08-29 |
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